Video: Backstage With Derek Lam

New York's fashion director, Harriet Mays Powell, went backstage with the designer just before his show to discuss fall's cheerful urban cowgirl, who's swathed in warm shades of terracotta. Of his lovely coats, Lam explains that in any city where you walk, your coat is how you present yourself to the world, a sort of costume — we're sold. Watch for more insights from the man himself.